– Lat/Long: 48.71° N 121.99° W
South Twin Sister Weather Forecast
Cascade Range · United StatesIssued: 9 am Mon 02 Nov Local Time
Updates in:
Update imminent hr min s
Issued: 9 am Mon 02 Nov Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryLight rain (total 9mm), mostly falling on Wed night. Very mild (max 13°C on Mon morning, min 6°C on Wed night). Wind will be generally light. | Days 4–6 Weather SummaryModerate rain (total 11mm), heaviest on Sat night. Very mild (max 15°C on Sat morning, min 6°C on Thu night). Wind will be generally light. | |||||||||||||||||
Monday 2 | Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | |  |  |  | | | | | | | |  | |
some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | some clouds | light rain | rain shwrs | rain shwrs | rain shwrs | rain shwrs | light rain | rain shwrs | some clouds | some clouds | some clouds | mod. rain | |
Cloud base (m) | 5550 | 5000 | 3050 | 3200 | 2450 | 2250 | 2200 | 2150 | 600 | 1800 | 900 | 3050 | 650 | 600 | 2850 | 2900 | 2550 | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | 0.6 | 9 | 0.5 | 0.1 | 1.5 | 2 | 0.1 | — | — | — | 7 |
max °C | 13 | 11 | 9 | 11 | 10 | 8 | 12 | 10 | 8 | 9 | 9 | 7 | 7 | 8 | 9 | 15 | 14 | 13 |
min °C | 11 | 10 | 8 | 10 | 9 | 7 | 10 | 8 | 6 | 8 | 7 | 6 | 6 | 7 | 7 | 12 | 13 | 7 |
chill °C | 11 | 10 | 8 | 10 | 9 | 6 | 10 | 6 | 6 | 8 | 6 | 4 | 5 | 7 | 6 | 11 | 12 | 6 |
Freezing level m | 3100 | 2950 | 2600 | 2050 | 2250 | 2300 | 2250 | 2100 | 1650 | 1550 | 1700 | 1900 | 1900 | 2300 | 2850 | 3200 | 3150 | 2550 |
 | 6:56 | — | — | 6:56 | — | — | 6:58 | — | — | 7:01 | — | — | 7:01 | — | — | 7:03 | — | — |
 | — | 4:45 | — | — | 4:44 | — | — | 4:42 | — | — | 4:40 | — | — | 4:38 | — | — | 4:37 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 9mm), mostly falling on Wed night. Very mild (max 13°C on Mon morning, min 6°C on Wed night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Moderate rain (total 11mm), heaviest on Sat night. Very mild (max 15°C on Sat morning, min 6°C on Thu night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table.For a wider overview of the weather, consult the Weather Map of Washington.